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5.函数与函数的图象关于(  )

A.轴对称     B.轴对称     C.直线对称    D.原点对称

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4.下列函数中,与函数有相同定义域的是( )

A.    B.    C.    D.

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3.设,则“”是“”的( )

A.充分不必要     B.必要不充分      C.充要     D.既不充分也不必要

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2.已知函数,则的值为(   )

A.1         B.2        C.-1       D.-2 

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1.已知集合,则( )

A.      B.     C.    D.        

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10. -- How do you ____ we go to Beijing for our

   holidays?

   -- I think we'd better fly there. It's much more

   comfortable. (2004福建)

   A. insist   B. want

   C. suppose   D. suggest

   [解析]选A  本题考查insist表示“坚持”时所带的

宾语从句用虚拟,即:insist that sb. (should) do sth. 所以

本题选A。

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9. -- Don't you think it necessary that he ____ to

   Miami but to New York?

   -- I agree, but the problem is ____ he has

   refused to. (2005  江苏)

   A. will not be sent; that

   B. not be sent; that

   C. should not be sent; what

   D. should not send; what

   [解析]选B  本题既考查了虚拟语气的用法,又考

查了表语从句的用法。由necessary引导的主语从句或宾

语从句,需要用shouId do,而他是要“被派往”迈阿密,所以

第一空用(should)not be sent,而第二空在be动词之后需

要用一个表语从句,由于句子结构完整,所以用that。

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8.(   ) If I ____ plane to do anything I wanted to, I'd

   like to go to Tibet and travel through as much of

   it as possible. (2005湖北)

   A. would   B. could

   C. had to   D. ought to

   [解析]选B  本题考查if引导的虚拟语气结构。从

I'd like to go...判断,本句为与现在事实相反,故选B。

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7. -- Do you know where David is? I couldn't find

   him anywhere.

   -- Well. He ____ have gone far - his coat's

   still here. (2005湖北)

   A. shouldn't   B. mustn't

   C. can't   D. woldldn't

   [解析]选c同第6题,表示否定的推测。

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6. I ____ have been more than six years old when

   the aecident happened. (2005  天津)

   A. shouldn't   B. couldn't

   C. mustn't   D. needn't

   [解析]选B“情态动词 + 完成时态”用来表示对过

去某一事实的假设或推测。尤其用来表示否定的推测则

用"can't / couldn't have done"。本句译为:当事故发生时

我不可能大于六岁。

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